{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2022-48791", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-07-16T11:38:08.893Z", "datePublished": "2024-07-16T11:43:47.211Z", "dateUpdated": "2026-08-05T08:52:21.770Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T08:52:21.770Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: pm8001: Fix use-after-free for aborted TMF sas_task\n\nCurrently a use-after-free may occur if a TMF sas_task is aborted before we\nhandle the IO completion in mpi_ssp_completion(). The abort occurs due to\ntimeout.\n\nWhen the timeout occurs, the SAS_TASK_STATE_ABORTED flag is set and the\nsas_task is freed in pm8001_exec_internal_tmf_task().\n\nHowever, if the I/O completion occurs later, the I/O completion still\nthinks that the sas_task is available. Fix this by clearing the ccb->task\nif the TMF times out - the I/O completion handler does nothing if this\npointer is cleared." } ], "metrics": [ { "cvssV3_1": { "version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "baseScore": 7.8, "baseSeverity": "HIGH" }, "scenarios": [ { "lang": "en", "value": "AV:L - The UAF is in the pm8001 PCIe SAS HBA driver and is reached via the local SCSI/block I/O and error-handling path (libsas EH → lldd_abort_task/query_task/lu_reset → pm8001_issue_ssp_tmf), not via network packets or physical device attachment.\nAC:L - An attacker who can submit I/O can drive SCSI EH into the TMF path; when the target/link is unresponsive (the common EH case), the 20s TMF timeout frees the sas_task while ccb->task remains set, leaving a wide, reliable window for the later mpi_ssp_completion UAF.\nPR:L - Triggering requires only unprivileged local access to a block/SCSI device backed by the pm8001 HBA (e.g., disk-group or container volume access), not real root or init-namespace admin privileges.\nUI:N - No victim action is required; the attacker initiates I/O that leads to EH/TMF and the subsequent completion UAF without cooperation from another user.\nS:U - This is a standard in-kernel use-after-free within the host OS authority and does not cross a VM, IOMMU, or other security boundary.\nC:H - mpi_ssp_completion loads the dangling ccb->task and reads fields from the freed sas_task, so a UAF gives an attacker-controlled object and a high-impact information-disclosure primitive.\nI:H - The completion path writes into the freed sas_task (task_status/state flags) and may invoke t->task_done(t), yielding a classic heap UAF write/control-flow hijack primitive for arbitrary code execution.\nA:H - Use of the freed sas_task in interrupt/completion context can oops/panic the kernel even without a full exploit, so availability impact is high." } ] } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/scsi/pm8001/pm8001_sas.c" ], "versions": [ { "version": "968ee9176a4489ce6d5ee54ff88dadfbff9b95f4", "lessThan": "d872e7b5fe38f325f5206b6872746fa02c2b4819", "status": "affected", "versionType": "git" }, { "version": "d712d3fb484b7fa8d1d57e9ca6f134bb9d8c18b1", "lessThan": "3c334cdfd94945b8edb94022a0371a8665b17366", "status": "affected", "versionType": "git" }, { "version": "d712d3fb484b7fa8d1d57e9ca6f134bb9d8c18b1", "lessThan": "510b21442c3a2e3ecc071ba3e666b320e7acdd61", "status": "affected", "versionType": "git" }, { "version": "d712d3fb484b7fa8d1d57e9ca6f134bb9d8c18b1", "lessThan": "61f162aa4381845acbdc7f2be4dfb694d027c018", "status": "affected", "versionType": "git" }, { "version": "fa3c19ceaa8b4b7c29d710c2c407df57d256a6c5", "status": "affected", "versionType": "git" }, { "version": "5.10.61", "lessThan": "5.10.102", "status": "affected", "versionType": "semver" }, { "version": "5.13.13", "lessThan": "5.14", "status": "affected", "versionType": "semver" } ] }, { "product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/scsi/pm8001/pm8001_sas.c" ], "versions": [ { "version": "5.14", "status": "affected" }, { "version": "0", "lessThan": "5.14", "status": "unaffected", "versionType": "semver" }, { "version": "5.10.102", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.15.25", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.16.11", "lessThanOrEqual": "5.16.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.17", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix" } ] } ], "cpeApplicability": [ { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.10.61", "versionEndExcluding": "5.10.102" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.14", "versionEndExcluding": "5.15.25" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.14", "versionEndExcluding": "5.16.11" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.14", "versionEndExcluding": "5.17" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.13.13" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/d872e7b5fe38f325f5206b6872746fa02c2b4819" }, { "url": "https://git.kernel.org/stable/c/3c334cdfd94945b8edb94022a0371a8665b17366" }, { "url": "https://git.kernel.org/stable/c/510b21442c3a2e3ecc071ba3e666b320e7acdd61" }, { "url": "https://git.kernel.org/stable/c/61f162aa4381845acbdc7f2be4dfb694d027c018" } ], "title": "scsi: pm8001: Fix use-after-free for aborted TMF sas_task", "x_generator": { "engine": "bippy-1.2.0" } }, "adp": [ { "providerMetadata": { "orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-03T15:25:00.417Z" }, "title": "CVE Program Container", "references": [ { "url": "https://git.kernel.org/stable/c/d872e7b5fe38f325f5206b6872746fa02c2b4819", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/3c334cdfd94945b8edb94022a0371a8665b17366", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/510b21442c3a2e3ecc071ba3e666b320e7acdd61", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/61f162aa4381845acbdc7f2be4dfb694d027c018", "tags": [ "x_transferred" ] } ] }, { "metrics": [ { "other": { "type": "ssvc", "content": { "id": "CVE-2022-48791", "role": "CISA Coordinator", "options": [ { "Exploitation": 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